Singlet aided infinite resource reduction in the comparison of distant fields

Abstract

We present a task which can be faithfully solved with finite resources only when aided by particles prepared in a particular entangled state: the singlet state. The task consists of identifying the mutual parallelity or orthogonality of weak distant magnetic fields whose absolute directions are completely unknown.

4 pages, 2 figures

References in corpus (3)

• Optimal local implementation of non-local quantum gates
• Quantum Clock Synchronization Based on Shared Prior Entanglement
• Quantum information and precision measurement

Cited by in corpus (2)

• On entanglement-assisted classical capacity
• Resource reduction via repeaters in entanglement distribution